Bdc not working with workflow

Question

Hallo,
I have an issue with a bdc FM i created not working with workflow.
If I test the FM, it works ok.
If i Test the method calling the FM it works ok.
if i test the task calling the method it works ok.
If I run the workflow it doesn't work, and i get the following messages:
S     DC     1     Unable to initialise ABAP Control Framework ...             
S     DC     1     Unable to initialise ABAP Control Framework ...          
S     DC     6     Control Framework: Fatal error - GUI cannot be reached     
A     SY     2     Exception condition "CNTL_ERROR" raised.
What is the meaning of this??     
Bdc is calling Me54n to set to click on reject button during Purchase Requisition Release,
putting the PR processing state in status '08'
I checked all the binding which are fine. No container parameter are passed a part from the business object.
here is the FM coding:
FUNCTION ZME_N_WF_REJ_PR.
""Local interface:
*"  IMPORTING
*"     VALUE(CTU) LIKE  APQI-PUTACTIVE DEFAULT 'X'
*"     VALUE(MODE) LIKE  APQI-PUTACTIVE DEFAULT 'N'
*"     VALUE(UPDATE) LIKE  APQI-PUTACTIVE DEFAULT 'L'
*"     VALUE(GROUP) LIKE  APQI-GROUPID OPTIONAL
*"     VALUE(USER) LIKE  APQI-USERID OPTIONAL
*"     VALUE(KEEP) LIKE  APQI-QERASE OPTIONAL
*"     VALUE(HOLDDATE) LIKE  APQI-STARTDATE OPTIONAL
*"     VALUE(NODATA) LIKE  APQI-PUTACTIVE DEFAULT '/'
*"     VALUE(BANFN_003) LIKE  BDCDATA-FVAL
*"  EXPORTING
*"     VALUE(SUBRC) LIKE  SYST-SUBRC
*"  TABLES
*"      MESSTAB STRUCTURE  BDCMSGCOLL OPTIONAL
subrc = 0.
perform bdc_nodata      using NODATA.
perform open_group      using GROUP USER KEEP HOLDDATE CTU.
perform bdc_dynpro      using 'SAPLMEGUI' '0014'.
perform bdc_field       using 'BDC_OKCODE'
                              '=MECHOB'.
*perform bdc_field       using 'DYN_6000-LIST'
                             LIST_001.
perform bdc_field       using 'BDC_CURSOR'
                              'MEREQ3328-AFNAM'.
*perform bdc_field       using 'MEREQ3328-EKGRP'
                             EKGRP_002.
perform bdc_dynpro      using 'SAPLMEGUI' '0002'.
perform bdc_field       using 'BDC_OKCODE'
                              '=MEOK'.
perform bdc_field       using 'BDC_CURSOR'
                              'MEPO_SELECT-BANFN'.
perform bdc_field       using 'MEPO_SELECT-BANFN'
                              BANFN_003.
perform bdc_dynpro      using 'SAPLMEGUI' '0014'.
perform bdc_field       using 'BDC_OKCODE'
                              '=MEREJECT'.
perform bdc_field       using 'BDC_CURSOR'
                              'DYN_6000-LIST'.
perform bdc_dynpro      using 'SAPLMEGUI' '0014'.
perform bdc_field       using 'BDC_OKCODE'
                              '=MESAVE'.
perform bdc_field       using 'BDC_CURSOR'
                              'DYN_6000-LIST'.
perform bdc_transaction tables messtab
using                         'ME54N'
                              CTU
                              MODE
                              UPDATE.
if sy-subrc <> 0.
  subrc = sy-subrc.
  exit.
endif.
perform close_group using     CTU.
ENDFUNCTION.
INCLUDE BDCRECXY .
I tries the same approach on ML81N to block a service entry sheet.(pressing the lock icon),
I get exactly the same issue.
Anybody knows how to resolve?
Or how to do the same without using a bdc call?
regards,
marco

Answer 1

Hi
this is the Method callind the FM
object is BUS2105 w delegation ZBUS2105.
BEGIN_METHOD ZRELEASEREJECTED CHANGING CONTAINER.
Data: CTU TYPE APQI-PUTACTIVE,      
      MODE TYPE APQI-PUTACTIVE,     
      UPDATE TYPE APQI-PUTACTIVE,
     NODATA TYPE APQI-PUTACTIVE.  
CTU = 'X'.               
MODE = 'N'.                
UPDATE = 'L'.              
NODATA = '/'.              
iobjectkey = object-key.
   CALL FUNCTION 'ZME_N_WF_REJ_PR'             
     EXPORTING                                 
       BANFN_003 = iobjectkey                  
       NODATA = NODATA                                            
       UPDATE = UPDATE                         
       MODE = MODE                             
       CTU = CTU                               
     IMPORTING                                 
       SUBRC = SUBRC                           
     TABLES                                    
       MESSTAB = MESSAGE                       
     EXCEPTIONS                                
       OTHERS = 01.                            
   CASE SY-SUBRC.                              
     WHEN 0.            " OK                   
     WHEN OTHERS.       " to be implemented    
   ENDCASE.                                    
SWC_SET_ELEMENT CONTAINER 'Subrc' SUBRC.                   
SWC_SET_TABLE CONTAINER 'MESSAGE' MESSAGE.                                                                               
END_METHOD.